ax50424 AXSEM, ax50424 Datasheet - Page 13

• Manufacturer Part Number: ax50424
• Description: Advanced Multi-channel Single Chip Uhf Receiver
• Manufacturer: AXSEM

RF Frequency Generation Subsystem (Synthesizer)
SYMBOL
f
f
f
f
BW
BW
BW
BW
T
T
T
T
PN868
PN433
PN868
PN433
Version 1.3
REF
range_hi
range_low
RESO
start1
start2
start3
start4
1
2
3
4
1
1
2
2
DESCRIPTION
Reference frequency
Frequency range
Frequency resolution
Synthesizer loop bandwidth
VCO current: VCOI=001
Synthesizer start-up time if
crystal oscillator and
reference are running
VCO current: VCO_I=001
Synthesizer phase noise
Loop filter configuration:
FLT=01
Charge pump current:
PLLCPI=010
VCO current: VCO_I=001
Synthesizer phase noise
Loop filter configuration:
FLT=01
Charge pump current:
PLLCPI=001
VCO current: VCO_I=001
CONDITION
BANDSEL=0
BANDSEL=1
Loop filter configuration: FLT=01
Charge pump current: PLLCPI=010
Loop filter configuration: FLT=01
Charge pump current: PLLCPI=001
Loop filter configuration: FLT=11
Charge pump current: PLLCPI=010
Loop filter configuration: FLT=10
Charge pump current: PLLCPI=010
Loop filter configuration: FLT=01
Charge pump current: PLLCPI=010
Loop filter configuration: FLT=01
Charge pump current: PLLCPI=001
Loop filter configuration: FLT=11
Charge pump current: PLLCPI=010
Loop filter configuration: FLT=10
Charge pump current: PLLCPI=010
868 MHz, 50 kHz from carrier
868 MHz, 100 kHz from carrier
868 MHz, 300 kHz from carrier
868 MHz, 2 MHz from carrier
433 MHz, 50 kHz from carrier
433 MHz, 100 kHz from carrier
433 MHz, 300 kHz from carrier
433 MHz, 2 MHz from carrier
868 MHz, 50 kHz from carrier
868 MHz, 100 kHz from carrier
868 MHz, 300 kHz from carrier
868 MHz, 2 MHz from carrier
433 MHz, 50 kHz from carrier
433 MHz, 100 kHz from carrier
433 MHz, 300 kHz from carrier
433 MHz, 2 MHz from carrier
MIN.
800
400
256
TYP.
-100
-110
-105
-115
-105
-115
-110
-122
100
200
500
-85
-90
-90
-95
-80
-90
-90
-95
16
50
25
50
12
5
Table of Contents
Datasheet AX50424
MAX.
930
470
UNIT
dBc/Hz
dBc/Hz
MHz
MHz
kHz
Hz
µs
13